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    Daylight Simulation

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Energy Concepts

For us this means: Accordance of economy, ecology and environmental protection. We provide a comprehensive analysis and a comprehensive planning of sustainable energy concepts for your specific task.

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Simulation &

We simulate and test your project with professional software programs. Challenging projects can be successfully realized only with the help of dynamic and scientifically profounded simulations.

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Planning &
Quality Assurance

For more than 20 years, we advise architects, engineers, investors and clients. We investigate by simulations and engineering services, if the requirements of the planning have the desired effects.



Certification &

Through a certification with a seal of approval, the value of a property is often improved. Modern architecture and new materials require more modern planning tools.


Quality and diversity

Project overview

Ifes has developed comprehensive energy and climate concepts in many projects or performed simulations. All objects are trendsetting and sustainable buildings, which fulfill the critical aspects of sustainability. We have also certified many of these buildings. In this way, the “ifes” helped many projects to a high profile Green Building Label.
You can request us for abstracts of these reference projects. If you have any further questions about individual projects, please do not hesitate to contact us.

ifes - Energy efficiency training at TÜV Rheinland in Greater China


In the period from 6.9.2014 to 11.6.2014 ifes GmbH were in Beijing at the colleagues of the TÜV Rheinland China for training with the contents of energy efficiency, sustainability and green building standards for certification by buildings.

Lecture by Gerhard Hoffmann on the exposition“E-world Energy & Water 2014” in Essen

The energy transition is a task that was discussed among circles of experts since the early 1980s and pursuits the goal of a sustainable energy supply. At least since Fukushima, the theme shapes the socio-political discourse...

ifes complements the service portfolio of TÜV Rheinland

The institute of applied energy simulation and facility management ifes / ifes GmbH is successfully integrated for nearly 15 years in the market.       

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ifes certifies buildings with DGNB, LEED, BREEAM and HCH standards        
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